Given how common counter synergies are in blue/green decks, this card is a shoe-in for staple status
Kazuuls Fury lets you either yeet it at their face in response to removal, or just use it to kill the other player after you slay the first in combat
The first thing I looked for when working on this deck was instant speed token generators
For me its reached a point where I literally just have a preset document where all the attack, power/ability, icons and other card elements are locked in, allowing me to swap things in and out at will
If an Adventure spell leaves the stack in any way other than resolving (most likely by being countered or by failing to resolve because its targets have all become illegal), that card wont be exiled and the spells controller wont be able to cast it as a permanent later
Commander has scores of equipment and aura cards that can essentially be equipped for free with this perk